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Oracle : Inner Join syntax

Ravi Kiran Va
Ranch Hand

Joined: Apr 18, 2009
Posts: 2234


I am confused with Inner Join syntax .

As per the defination of Inner Join it says that
Inner joins return all rows from multiple tables where the join condition is met.

By going through Inner Join examples in web , Inner join is written in these syntaxes as shown :

First Syntax :

Second Syntax :

Please tell me if the keyword Inner Join usage is mandatory or not ??

Thank you .

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Ravi Kiran Va
Ranch Hand

Joined: Apr 18, 2009
Posts: 2234

I will reply to my question itself :

first is ANSI syntax and second is non ANSI .

As backward compability Oracle is still supporting ANSI syntax.

Please let me know if you have any queries .
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